CSEMP assessment of CB153 in biota at Tynemouth
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 20.23 | 22.63 | -8.11 | 16.23 | | | |
| linear | 2 | 22.08 | 28.08 | -8.04 | 16.08 | 0.149 | 1 | 0.6993 |
| smooth (df = 2) | 3 | 23.59 | 36.92 | -7.80 | 15.59 | 0.488 | 1 | 0.4846 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2008 | 2015 | -0.3481 | -0.0740 | 0.2742 | 0.7080 | 0.387 | 0.7119 |
| last 20 years | 2008 | 2015 | -0.3481 | -0.0740 | 0.2742 | 0.7080 | 0.387 | 0.7119 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.929 | 0.098 | -2.2509 | 0.4300 | -5.235 | 0.9990 |
| EAC | 0.929 | 20.605 | 3.0995 | 0.4300 | 7.209 | 0.0002 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
